Watlow Series 935A - Manual (Page 25)

Watlow Series 935A User’s Manual 2 3
To Set Up Front Panel Lock…
1. Install an external switch.
2. Wire the control per the example below and the information on p. 42-45.
3. Go to [CnFG] , then [`Ot1] , and choose [`FPL] .
Table 9 - Using Front Panel Lock
Figure 6 - Front Panel Lock Wiring
See p. 43 for more wiring information.
(Closed switch = locked)
∫
WARNING: When Output 1 is a Front Panel Lock [`Ot1] = [`FPL] , the output is energized! Do
not connect a power switching device to Output 1; injury or death, or damage to equipment or
property could result.
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CAUTION: Failure to install a 60 to 70
Ω
, 0.5 watt resistor across the customer-supplied Front
Panel Lock switch will cause the panel to lock out even when the switch is open. Injury to
personnel, or damage to equipment or property could result.
Output 1; Front Panel Lock
S2
–
1
S1
+
2 –
3 +
4
5 6 7 8
OT1 IN OT2 POWER
60 to 70 Ω 0.5w resistor See Caution
Configuration Menu
[``In]
Input Type
[`C_F]
Celsius/Fahrenheit
[``rL]
Input Range Low
[``rh]
Input Range High
[`Ot1]
✓
Output 1 Function
[`Ot2]
Output 2 Function
[dISP]
Display Default
•
•
•
[FAIL]
Failure Mode
[tIM
Timer Function
[Strt]
Start Timer
[`rdY]
Timer Ready Band
[``St]
Signal Time
[SLOC]
Set Point Lockout
[`tAG]
Lockout Tag
[`Ot1]
[`FPL]
Set Up Front Panel Lockout
[`Ot1] = [`FPL]
View Process Yes
View Set Point Yes
Change Set Point No
Auto-tune No
Reset Alarm Yes
View or Change Operation No
Menu (Except Config. Menu)
View or Change Configuration
No
Menu (Except Tag)
View or Change PID Menu
No
RDY
2
1
SET
[`fpl]